12869999 has 4 divisors (see below), whose sum is σ = 12927936. Its totient is φ = 12812064.

The previous prime is 12869993. The next prime is 12870001. The reversal of 12869999 is 99996821.

12869999 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12869999 is a prime.

It is a Duffinian number.

12869999 is a modest number, since divided by 9999 gives 1286 as remainder.

It is a self number, because there is not a number n which added to its sum of digits gives 12869999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12869993) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28634 + ... + 29079.

It is an arithmetic number, because the mean of its divisors is an integer number (3231984).

Almost surely, 2^12869999 is an apocalyptic number.

12869999 is a deficient number, since it is larger than the sum of its proper divisors (57937).

12869999 is an equidigital number, since it uses as much as digits as its factorization.

12869999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57936.

The product of its digits is 629856, while the sum is 53.

The square root of 12869999 is about 3587.4780835567. The cubic root of 12869999 is about 234.3470572673.

The spelling of 12869999 in words is "twelve million, eight hundred sixty-nine thousand, nine hundred ninety-nine".